language

I think the English is a very nice language.
I think English is a very nice language.

Use the name of a language without the: ‘English is a very nice language.’ ‘She speaks French.’

English language is not hard to learn.
The English language is not hard to learn.

Use the when the word language is included: ‘the English language’, ‘the French language’.

Check our grammar lesson on a/an, the and no article.